National Republican., 1887-12-20
SPEOXAL NOTlOES
PURE WATER.

w~ PURE WATER
The following is the official report of the
superintendent and engineers OF the water
works of Atlanta, Co., dated Nov. 20, 1887:
Honorable Board Wafer Commissioners:
GENTLEMEN. According to a resolution ad.
opted by your honorable body at the last meet
ing have made a thorough aud complete test
OF the filters as TO their capacity The builders
liter 500, co gallons in twenty.four houps. ours
Mr.. Clayton. city engineers Mr.. Haynes, assis-
lant city engineer, and myself, In behalf of the
city, and MI. Q. II, Kendrick, in behalf OF the
test. Mr.. Travis. the engineer In charge of the
pumping station, gave his personal attention
TO the operation OF the engine and pumps. The
large a. 90 zoo gailon) engine was run through
the whole test. Crhe small 1000 900 gallon
engine is usually put in service after the heavy
consumption oithe day is over and run through
Mr.. Clayton and myself decided that run
OF twelve hours, requiring that during the
time six of the twelve filters should be thor.
cient lest, The test was started at 1880 a, m.
and closed at 1880 p. M. The water being de.
liveIed by the pumps was estimated from the
revolutions Of the engine. and was accepted
tax en- fiOm The engine counter and the height
Of water In the clear water basin at the expira-
tion ofeveIy hour. The theoretical pumping
capacity OF each pumping cylinder at q revo-
luton Of the engine (dcducting the cubical
displacement of the rod from the up stroke) is
20 t6.lc0o gallons, which give for the four
In figuring the duty the friction is left out as
compensation for loss in actual pumpage,
caused from loss Of probable leakage by
Piunger and Close OF valves. The pumps we're
lowed may or may not be sufficient. This
would be hard 10 determine accurately, but as
the head of 800 feet on the pumps give l3O
pounds pressure the valves close very quickly,
and, therefore, the percentage of loss at this
point is small. The clearwater basin holds
s59,0iO gallons with the water up to the
height. The character of the water being dis
charged from the filter Was such that small
objects at the bottom Of the basin could be
plainly seen through twenty feet Of water; and
seen by moonlight.
There are twelve filters ten feet in diameter,
thirteen feet high. AT the opening of the test
ten, filters were put in service, but after half
an hour one filter was cut out and nine were
used Uhe water In the basin gaining on the
pumps: then nine filters were used for nine
ind a half hours: then the twelve filters were
put In and run for seven and a half hours, and
eleven for the closing half hour. making an
average OF eleven filters In use throughout the
twelve hours. The result obtained shows that
the filters. in the present condition of the
water, have a capacity OF flltering f,2lG.0Oi
gallons IN twenty'four hours.
A tabulaled statement of each hours work Is
attached to the report uncer the following
heads: Time. height OF water in basln read.
ing OF engine counter, revolutions OF engine,
gallons Of water pumped, equivalent to mum:
btr OF gallons In twenty.four hours, number of
filters IN use The footing Of these columns
gives the following:
Water at close of test three inches
higher than at opening. d,4SS
Water. pumped: ACKNOWLEDGEMENTS. l,027,SiS
not in ."........,'.......,......... 1868
Result in 70 2,l0s,OO2
Capacity Of l2 filters In 2i hours. ... 4,2l6,O0i
r. M. CLAYTON, City Engineer.
G. b. HAYNES, Assistant City Engineer.
WM. G. RICHARDS, Supt. Water Works.
THE ABOVE is ON A PLANT RECENTLY
COMPLETED IN ATLANTA, GA. BY TIE
BrNE BUILDING, NEW YORK.
AGENT FOR WASHINGTON, d. c.,
S. TIFFANY,
delG,l7,2O,2i EBBITT HOUSE.
m1w1 WEDDINGS AND RECEPTIoNs-Go
~ to BURGDoRF STABLE for frst class
carriages ard eoupcs by the hour, day, or
month; ifdesired horses hired without car.
riaeesi 4l0 to 400 Sth st. N. w. dee2xzlR~'
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